diff --git a/GPy/__version__.py b/GPy/__version__.py
index 8cce3f28..73164c06 100644
--- a/GPy/__version__.py
+++ b/GPy/__version__.py
@@ -1 +1 @@
-__version__ = "0.8.8dev5"
+__version__ = "0.8.9dev5"
diff --git a/setup.cfg b/setup.cfg
index d7da653a..0099e813 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.8.8
+current_version = 0.8.9
 tag = True
 commit = True
 
@@ -10,3 +10,4 @@ universal = 1
 
 [upload_docs]
 upload-dir = doc/build/html
+